What happens when a magnetically driven pump idles? Due to the lack of cooling, the temperature of the pump chamber will rise rapidly. After the temperature exceeds the rated standard, the motor will burn down and demagnetize, which will damage the magnetic pump. In fact, all the motor driven pumps are clearly prohibited from idling, and can not run for a long time below the standard flow value.
About the idling of magnetic pump, through understanding the internal structure composition and operation principle of magnetic pump can be known, magnetic pump and pipeline pump, both use the flow of liquid to achieve cooling and lubrication, if idling in operation due to unexpected conditions, the motor will continue to work to generate heat, while the lack of liquid cooling, will cause the temperature of the pump to rise rapidly. At present, most models of magnetic pump clearly stipulate that the temperature rise of the motor shall not exceed 75℃. If it is not stopped in time, it will lead to the burning of the pump.
Once the pump is burned, the condition of the magnetic pump will be greatly reduced. In addition to the motor itself, it may make the magnetic steel inside and outside lose magnetism, which is a very serious damage. So in the process of using the pump, we must pay attention to the operation of the situation, avoid idling. At present, magnetic pump has a variety of production materials, according to the material difference, there are different heat resistance, in simple terms, stainless steel magnetic pump < 40℃, fluorine plastic magnetic pump < 60℃, metal pump < 100℃, can be selected according to the actual working conditions.
After understanding how magnetic pump idling, it is recommended that users take into account the temperature change of the pump environment in the selection of the place, if there is a high temperature resistance demand, you can contact the manufacturer in advance to customize the pump body, but no matter what kind of material is used in the pump process, still to avoid idling. In addition, it should be noted that the magnetic pump and the centrifugal pump, after more than one thousand hours of use, need to carry out a routine inspection, confirm the wear of each component, and focus on the inspection of the internal bearing and end face of the moving ring.
